iPod sales skyrocketed over the U.S. holiday season this weekend, as online retailer Best Buy, Amazon and eBay reported , according to Macworld U.K. Sales of the black 4GB iPod nano shot up 95 per cent, while the white version leaped 88 per cent between Friday November 25, and Saturday November 26, compared to a week earlier, according to eBay Marketplace Research. Best Buy's online store sold out of both the white and black versions of the 4GB iPod nano this weekend. The Nano was Amazon's sixth biggest-selling item. Apple has officially confirmed “staggering” demand for its music players over the start of the traditional holiday shopping season.